I'll take a shot at giving a brief explanation.
I have shot in a few of these shoots, this is how it works, to the best of my knowledge. If I misunderstand or misrepresent anything , it's not intentional. Please don't take this as the final word, but as a guide to the rules as I know them from my participation, relying on my feeble memory.
There will be a sign up sheet for each shoot.
There is room for 20 shooters per sign up sheet, each name corresponds with a number from 1 - 20, shooter has his (or her) choice of available numbers.
One sign up sheet per shoot.
The shoot begins after all positions on a sign up sheet are sold.
Each sign up sheet will be numbered and labeled for ham, breakfast tray or money.
(There will be another shoot in November for turkeys).
Example: If shoot #10 is for HAM, the sign up sheet will be labeled
SHOOT #10 HAM
A shooter may buy as many shots as he / she wants per shoot.
There are target cards numbered from 1 - 20 for each shoot. Each set of 20 targets is also numbered to match the number of the corresponding sign up sheet.
The targets are hung out one at a time, and each shooter fires one shot at one target, in numerical order of the sign up sheet.
The targets are inspected / measured by a judge , who doesn't see the shooters names or the sign up sheet, just the 20 numbered targets, from one shoot at a time, to keep it anonymous.
The card with a hole closest to the X in the center is the winner. It doesn't matter how many pellets hit the card, the one closest to center is the one that counts.
The targets will look similar to the ones in the picture below. In the example pictured, the targets would be for shoot #1, shooters #14 and #15.
I hope I didn't confuse anyone with this explanation.
If you have any questions that I didn't answer, I'll be glad to try to answer them for you. I'll even make phone calls for clarification if needs be.